gpiozero | A simple interface to GPIO devices with Raspberry Pi
kandi X-RAY | gpiozero Summary
kandi X-RAY | gpiozero Summary
A simple interface to GPIO devices with Raspberry Pi
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Top functions reviewed by kandi - BETA
- Set the value of the character LEDs
- Parse state
- Turn off all the devices
- Turn all devices
- Blink the LED
- Joins the thread
- Stop the LED thread
- Return a boolean indicating whether values are within a given range
- Normalize values
- Blink the actor
- Blink the LED device
- Return True if all values are True
- Set the pull direction
- Combine multiple values
- Set the pull resistor
- Return the angle in degrees
- Blink a device
- Create a pin object
- Generate a sequence of sin - domain sine values
- Starts the LED
- Returns a new instance of the specified hardware factory
- Blink an image
- Return the LED value
- Send the message
- Turn off the LED
- Scales a list of values
- Move the motor forward
gpiozero Key Features
gpiozero Examples and Code Snippets
Lines of Code : 11
License : No License
Copygpio -g mode 22 out
gpio -g write 22 1
gpio -g mode 4 out
gpio -g write 4 0
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(22, GPIO.OUT)
GPIO.output(22, True)
from gpiozero import LED
led = LED(22)
led.on()
wget https://bit.ly/2Lr9CT3 -O tree.py
sudo apt install python3-gpiozero
from tree import RGBXmasTree
tree = RGBXmasTree()
$curl -sL https://deb.nodesource.com/setup_7.x | sudo -E bash -
$ sudo apt install nodejs
$ node -v
v7.3.0
Community Discussions
Trending Discussions on gpiozero
QUESTION
I'm a bit new to Python and I'm developping an application for a Raspberry Pi where a motion sensor is connected. The idea is to place this Raspberry in a room and on motion detection a video starts playing fullscreen. After the video is done playing I want to let the device sleep for 10 minutes and than activate the motion sensor again to play the same video again. The screen also should stay black after the video so not quiting the vlc application and see the Raspberry Pi Desktop.
So far I tried some code where in one file the fullscreen works, and in the other file the loop works, but bringing the 2 files togheter is giving errors.
As I said I'm very new to coding so it could be the problem is very stupid and the solution very simple. Thanks in advance for the help. Down below my 2 code-files.
Option 1 (fullscreen not working)
...ANSWER
Answered 2022-Mar-29 at 17:51Keep track of the video playing in another while loop and reload before starting again.
Here's your code (adjusted as I don't have your kit)
QUESTION
Im trying to use my raspberry pi electronics kit to run an LED program. My code is just:
...ANSWER
Answered 2022-Mar-26 at 17:36As per the documentation, it should be LED, not led:
QUESTION
I'm trying to make a program to display some time and temperature numbers on a web page. I have two html templates, "index.html" and "set.html" in a "templates" directory under the main "furnace" directory. The index part works as it should when called by flask but the "set" link (to go to a page to enter a new time and date) results in a "404 Not found" error. I've stripped everything out of the Python program that isn't part of flask and displaying the html, and I still get the error. At this point, all that's left is about the same as simple examples I've found; I've compared my program to the examples and I just can't see what's going wrong. Can some sharp eyes spot my mistake?
furnace-9x.py
...ANSWER
Answered 2022-Feb-06 at 02:04The problem here is a mismatch between the link in index.html (set.html) and your route (/set).
To resolve the issue, you can update line 35 in your index.html like this:
QUESTION
I'm trying to display time and temperature and other variables on an LCD display, and on a web page (local network only) when it's accessed. This is running on a Raspberry pi Zero 2 W, using python. My thinking is, the flask app should be running in the background, and serving up the template when it's called. Meanwhile, the timer should interrupt every second and cause the LCD display to be updated.
The LCD display works as it should, with the data refreshed every second, as long as the flask server is not active (commented out the "flask_app.run..."). But when flask is enabled, the web page works but the display does not.
I'm about at my limit of understanding python and flask -- can you see what's wrong here? Thanks.
...ANSWER
Answered 2022-Jan-25 at 17:47Once you call flask_app.run(), that is a blocking call...it will stay inside that function forever. Therefore, when flask_app.run() is uncommented, your LCD timer loop never gets executed. My suggestion is to use a multithreaded approach where one thread takes care of the flask app and the other thread takes care of other board-level I/O that you want to do. Here's a simplistic working example where the flask app uses the main thread and a simulated LCD process updates a counter (the console simulates your LCD):
QUESTION
i Try to set up my Raspberry pi with a fan. It should log the Temperature every 5 minutes and write it to a .csv-file with a Python Script. If the Temperature is hotter than 52 Degrees Celsius, it shoud turn on a USB-Hub, and turn it of if it is below that value. For now, i created a little website, to see my logged data. And here is my question: as you can see in the screenshot, it tells me sometimes [HOT] and sometimes [OK] for the same Values? Also it is not sepperating the Data like a want it to seperate (over/under 52 Degrees Celsius).
Screenshot from my little website (This only displays my .csv-File)
My .py-code:
...ANSWER
Answered 2022-Jan-15 at 21:43Your comparison is
QUESTION
I am currently trying to setup this code so that when a button in this case button1 connected to a RPi GPIO runs the function c1 and keeps looping that function until another button button2 is pressed and then it runs the function c2 keep looping in that function.
ANSWER
Answered 2021-Dec-26 at 00:22Have you debugged your program? Have you checked that break was called?
It might help you find the problem.
You can also print: button2.is_pressed to find out what's happening.
QUESTION
I was hoping someone could help me with the following. I have a raspberry pi with an external button with GPIZero on linux. I would like it so when I press the button, python prints "button is pressed" once, and nothing else prints until I release the button. When the button is released, I'd like for python to print "loop" every three seconds. When I press the button, I always want the latest loop() function to be finished beforehand.
So essentially, upon startup, python should print "loop" over and over again until I press the button. When I press the button the loop() process should finish before python prints "button is pressed". Then as long as I am holding the button, nothing else should print. When I release the button, it should go back to looping "loop".
Right now what I have below doesn't work, but its very close to accomplishing what I want. The issue is this block of code, I believe:
...ANSWER
Answered 2021-Dec-21 at 03:45def MainLoop():
is_pressed = False
while True:
if not is_pressed and button.is_pressed:
is_pressed = True
do_something()
else if is_pressed and not button.is_pressed:
is_pressed = False
QUESTION
I'm trying to setup a simple flask webpage to control a 3d Xmas Tree running on a raspberry pi. I've posted the code for the app and the template below. So far it works in that I can run a single function, such as Flicker and then perform either the Reset or Off functions. However, I am not able to call other functions following that. And if I run Flicker and then Random or All Flash they kind of blend together. My goal is to be able to cleanly stop GPIO output via the reset or off functions and call each respective function via the webpage's buttons or links.
app2.py
...ANSWER
Answered 2021-Dec-09 at 17:50Hi I don't have your setup so I couldn't test fully. But I think you want a background loop, and use global state to manage interaction with tree (since there is physically one tree.)
QUESTION
I would like to use my Raspberry Pi as a weather station. Therefore I bought a "Debo Sen Rain" and a "Debo Sens BME680". Because I've never worked with Python before, I copied two scripts out of the Internet. They do both work very well. Yesterday I created a telegram bot, which should send me the current measured data, when sending "/data" or "/rain". So I copied the original scripts in a new python script and embedded the bot. Unfortunately, It doesn't work but I can't locate the error.
Here's my code:
...ANSWER
Answered 2021-Nov-30 at 14:20Lets take a closer look at this part of your code:
QUESTION
I'm stuck since a couple days and tried most of the answer given to similar questions on this site.
Before starting I'd like to point out that I am working via ssh and can only edit the code via nano (not my choice...)
My problem is the following:
I am using MariaDB to store the raspberry pi CPU temperature along a camera temperature to plot the temperature evolution. I have an error when trying to insert the values in the data base.
I have the following table in cpu_tempDB
...ANSWER
Answered 2021-May-29 at 08:58You need to put arguments into a tuple:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install gpiozero
You can use gpiozero like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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